Following are a number of back-translations as well as a sample translation for translators of Isaiah 63:1:

• Kupsabiny: “Who is this one who comes from the country of Edom,
  and he arrives from Bozrah wearing red clothes?
  Who is this one who is wearing clothes of rulership
  and walks proudly in great power?
  ‘I am God and I announce my victory.
  I have power by which I can save people.’” (Source: Kupsabiny Back Translation)
• Newari: “Who is this that comes from Edom and from Bozrah wearing clothing that is red?
  Who is this that comes with his great power, wearing clothes of wealth and glory?
  "It is I, speaking out with righteousness
  and having exceedingly great power to deliver."” (Source: Newari Back Translation)
• Hiligaynon: “Who is this coming from Bozra which is-under-the-jurisdiction of Edom, whose beautiful clothes have red stains? He is-approaching with much power.
  He is the LORD who proclaims that now his people possessed the victory with righteousness. He has power to save.” (Source: Hiligaynon Back Translation)